What all things are needed to make a very good responsive web page

Answer 1

Have a look into Twitter Bootstrap after you learned HTML, CSS and Javascript. With this tool it is not difficult to make nice responsive websites.

Answer 2

I don't think it is correct
Y do we need to study all languages
I need to know which particular languages

Answer 3

To make a real website u need to learn all languages.Then i should have a 24×7 high speed internet connection.Also u need a good hardware,low cost pc will not work.U also need to buy a new good software for it